Victor popp



(No Model.)

V. POPP.

FLUID METER.

No. 438,766. Patented 001;. 21, 1890.

WITNESSE'S INVENTQR *ma Noms rusas coi, Fumo-wma, Mmmm-cu, n, c.

AUiIiTnD STATESy PATENT OFFICE..

VICTOR POPP, OF PARIS, FRANCE, ASSIGNOR TO THE POPP COMPRESSEDl I AIR AND ELECTRIC POVER COMPANY, LIMITED.

FLUID-METER.

SPECIFICATION forming part of Letters Patent No. 438,766, dated October 21, 1890.

Application iiletlAp1il7, 1888. Serial No. 269.987. (No model.) Patentedin France November 11, 1887, No. 186,823 y in England November 18, 1887, Nos. 15,878, 15,878A, and 15,87813; in Germany, December 24, 1887, Nos.44,745 and 47,546; in Belgium May 7, 1888, No. 81,725, andin Italy June 30,1888,XLVI,247.

To all whom it may concern:

Be it known that I, VICTOR POPP, a citizen of the Republic of France, residing at the city of Paris, in the Republic of France, have invented certain new and useful Improvements in Fluid-Meters, of which the following is a specification.

This invention is embodied in patent-s in the following countries: in France, dated November 11, 1887, No. 186,828; in England, dated November 18, 1887, Nos. 15,878, 15,878A, and 15,87 8B; in Germany, dated December 24, 1887, Nos. 44,745 and 47,546; in Belgium, dated May 7, 1888, No. 81,725, and in Italy, dated June 30, 1888, Vol. 46, No. 247.

My invention pertains to meters for the measurement of compressed air, though the same apparatus can be used for gas or other iiuids.

In the accompanying drawings, illustrating my invention, Figure 1 is a vertical section. Fig. 2 is a horizontal section on the lines 2 2, Fig. 1. Figs. 3 and 4are details of the valves.

In the drawings, A and A are two concentric cylinders of sheet-iron or similar material having between them an intermediate space f.

a and g are the inlet and outlet pipes, respectively. The former is in communication with the lower end of the interior cylinder by means of the opening c. The latter is in communication with the space f by means of the opening f. The upper end of the interior cylinder communicates with the space fby means of a series of holes e.

E is a vertical shaft concentric with the cylinders and provided with a helical blade cl of z luminium or similar metal, having small Weight and friction. This blade ol substantially lls the interior of cylinder A, and the cylinder being of a known capacity the amount of air passing through it will be read ily known from the number of revolutions of the shaft E. l

B is the cap-piece for the two cylinders, and a registering device D of well-known construction is screwed upon the cap-piece B at C. An extension of shaft E is carried through the cap-piece, and carries a screw F, engaging with a worm-wh eel G of the registering device D. In the floor of the interior cylinder are a number of openings b, each one closed by a weighted valve b. There are four of these openings of a rectangular shape, as may be seen in Fig. 2, and on their upper edges are flanges 19', forming a box, the bottom of which is formed by the valve b. Two of the sides of this box are placed at an angle of forty-five degrees, and the helical blade CZ being at the same angle the air will be delivered at theproper angle to produce the maximum effect against the surface 0f -blade CZ.

Each of the valves b is provided with a different weight, so that they will open consecutively as the pressure of the air in pipe c. increases. By this arrangement whatever may be the pressure of the air it will be delivered from a definite opening and at the proper angle against the surface of blade d, causing it to rotate in correspondence with the passage of the air through the apparatus. This arrangement also provides against any back pressure affecting the speed of the machine.

In operation the fluid entering a passes through one or more of the openings b into the cylinder A, where it causes the rotation of the shaft E, and then passes through the opening e into the intermediate space f,

where it communicates with the outlet-pipe g.

I claim-` 1. In a huid-meter, the combination, with an inclosing cylinder having inlet and outlet openings at its opposite ends, respectively, of a concentric shaft carrying a helical blade substantially filling the interior of the cylinder, a registering device operated by the said shaft, and a series of differently-weighted valves controlling the inlet to the cylinder.

2. In a fluid-meter, the combination of two concentric cylinders having intermediate space, inlet and outlet pipes connected to the lower end of the two cylinders, respectively, and a vertical shaft within the inner cylinder, having bearings preventing longitudinal movement thereof and provided with a helical blade substantially lling the cylinder both laterally and longitudinally, there being a communicating opening between the two cylinders at their upper end, and at the bottoni of the interior cylinder an opening provided wit-h a deflecting-plate for directing the air against the said helical blade.

3. The combination, with a cylinder having an upright shaft provided with a helical blade substantially filling the cylinder, of the eX- ternal concentric cylinder separated by the air-space and communicating at its upper end with the interior cylinder, and inlet and outlet pipes connected to the lower end of the two cylinders, respectively, the inlet-pipe cornmunicating with the interior cylinder through a series of openings provided with valves of dierent pressure, whereby one or more of l5 said valves may be opened, according to the pressure of the fluid.

VICTOR POPP.

lVitnesses:

RoBT. W. BLACKWELL, Gr. RENAULT. 

